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Article

Effects of Urbanization on Landscape Patterns in the Middle Reaches of the Yangtze River Region

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Key Laboratory of National Forestry and Grassland Administration on Ecological Landscaping of Challenging Urban Sites, National Innovation Alliance of National Forestry and Grassland Administration on Afforestation and Landscaping of Challenging Urban Sites, Shanghai Engineering Research Center of Landscaping on Challenging Urban Sites, Shanghai Academy of Landscape Architecture Science and Planning, Shanghai 200232, China
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School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
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Beijing Engineering Research Center of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China
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Shanghai Foundation Ding Environmental Technology Company, Shanghai 200063, China
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Harvard China Project, Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, MA 02138, USA
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School of Design, Shanghai Jiao Tong University, Shanghai 200240, China
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Author to whom correspondence should be addressed.
Academic Editors: Luca Salvati and Diane Pearson
Land 2021, 10(10), 1025; https://doi.org/10.3390/land10101025
Received: 27 July 2021 / Revised: 15 September 2021 / Accepted: 17 September 2021 / Published: 30 September 2021
(This article belongs to the Special Issue Dynamic of Natural Ecosystems under Anthropogenic Disturbances)
The middle reaches of the Yangtze River region (MRYRR) are China’s first trans-regional urban agglomeration, located in the center of the Yangtze River Economic Belt. The MRYRR is an important ecological reserve, and its land cover changes are affected by both socio-economic development and geographical environment. In this paper, Landsat ETM/TM/OLI remote sensing images were used to monitor land use and landscape patterns from 1990 to 2015. Through supervised classification, land use transfer matrix, landscape pattern metrics and correlation analysis, the spatial-temporal patterns of land use change and its relationship with socio-economic in the study area were revealed. The results showed that: (1) the main land use types in the study area were cropland (CL) and forestland (FL), accounting for more than three-quarters of the study area. During the study period, built-up land (BL) increased, CL decreased, FL increased first and then decreased; (2) the BL expanded mainly by occupying CL and FL, and regional landscape pattern was gradually fragmented, with complex patch shape and increasing diversity and heterogeneity. Among them, the BL is gradually gathered, and the FL and CL are gradually fragmented; (3) in the past 25 years, the urbanization process in this region has been obvious, and the Gross Domestic Product (GDP) has increased by 36 times. The socioeconomic variables were positively correlated with BL, orchard (OL) and Shannon diversity index (SHID), and negatively correlated with CL, Wasteland (WL), mean patch size (MPS) and contagion size (CONTAG). The results showed that the urbanization development has a great impact on the region, and the ecological protection task is still challenging. It is necessary to protect high-quality cropland and draw a red line for ecological protection. We should strengthen the construction of ecological corridors and ecological nodes to adapt to regional sustainable development. View Full-Text
Keywords: urbanization; land use transition; landscape patterns; middle reaches of the Yangtze River region; correlation analysis urbanization; land use transition; landscape patterns; middle reaches of the Yangtze River region; correlation analysis
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MDPI and ACS Style

Yi, Y.; Zhang, C.; Zhang, G.; Xing, L.; Zhong, Q.; Liu, J.; Lin, Y.; Zheng, X.; Yang, N.; Sun, H.; Shi, M.; Kang, H. Effects of Urbanization on Landscape Patterns in the Middle Reaches of the Yangtze River Region. Land 2021, 10, 1025. https://doi.org/10.3390/land10101025

AMA Style

Yi Y, Zhang C, Zhang G, Xing L, Zhong Q, Liu J, Lin Y, Zheng X, Yang N, Sun H, Shi M, Kang H. Effects of Urbanization on Landscape Patterns in the Middle Reaches of the Yangtze River Region. Land. 2021; 10(10):1025. https://doi.org/10.3390/land10101025

Chicago/Turabian Style

Yi, Yang, Chen Zhang, Guilian Zhang, Luqi Xing, Qicheng Zhong, Jialin Liu, Yichen Lin, Xiewei Zheng, Na Yang, Hao Sun, Mingchang Shi, and Hongzhang Kang. 2021. "Effects of Urbanization on Landscape Patterns in the Middle Reaches of the Yangtze River Region" Land 10, no. 10: 1025. https://doi.org/10.3390/land10101025

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